Yeah, I think that's right, but I spose their method uses pre-calibrated gear. The thing with commercially available LED's is that there is no standard distance of meter from light source, nor surroundings/reflectors, etc. so while we can reasonably hope that the figures for the products of a given manufacturer should be be consistent with each other, once it comes to various Chinese factories putting LED's in torches, even if the figures they were quoting were the output from the torch, rather than the potential of the LED, we could hardly trust them anyway. It's not just Chinese manufacturers though - that was my main point really: there is no internationally recognised standard for any manufacturer to adhere to so they just make up their own tests.